Weench attachment



D. J. PUGH.

WRENCH ATTACHMENT.

APPLICATION HLED IAN. 5. 1916.

1,193,299. Patented Aug. 1,1916.

q /9 WITNESSES: Z I liVJl EPNTOR 0 I DANIEL. UGH I 9 BYW- A TTORAIE Y8 .DANIEL JONES PUGH, OF POT'ISVILLE, PENNSYLVANIA.

Wanner: ATTACHMENT.

Specification of Letters Batent.

r. Patented Aug. 1,1916.

- Application filed January 5, 1916. Serial No. 70,431.

To all whom it may concern:

citizen of the United States, and a resident of Pottsville, in the county of Schuylkill and State of Pennsylvania, have invented an Improvement in WVrench Attachments, of which the following is a specification.

This invention is an improvement in wrenches and has. particular reference to an attachment for rendering the tool convertible to different uses.

An object of the invention is the provision of a removable jaw adapted for connection with an ordinary nut wrench whereby the same may be readily and quickly converted into a pipe wrench.

Another object of the invention is to provide novel means in the form of a spring member secured to the shank of the wrench and adapted to engage and securely retain the removable jaw in position.

A further object of the invention is the provision of an attachment of this character which is extremely simple in construction, easy to manufacture, readily applied to the ordinary form of nut wrench and elfective in carrying out the purpose for which it is designed.

The inventive idea involved is capable of receiving a variety of mechanical expressions, one of which, for the purpose of illustrating the invention, is shown in the accompanying drawing, in which Figure 1 is a side elevation of the wrench, showing the attachment applied thereto and constructed in accordance with the inven tion. Fig. 2 is a top plan view of the head of the wrench. Fig. 3 is a transverse section on the line 33 of Fig. 1. Fig. 41 is a section on the line 4. l of Fig. 1. Fig. 5 is a section on the line 5-5 of Fig. 1. Fig. 6 is a detail perspective view of the spring member used in connection with the invention.

Referring more particularly to the accompanying drawing, in which like reference characters indicate similar parts, the numeral 10 indicates the shank of an ordinary nut wrench which has the fixed head 11 and slidable jaw 12 operated by the usual worm 13.

The attachment which comprises the es sential feature of this invention includes a removable jaw 14 having an inclined serrated gripping surface 15 adapted for engagement with a pipe or the like. The jaw ll'is also provided'with a small shank 16 adapted to be inserted and fit snugly into an opening 17 formed in the head 11 of the wrench whereby to assist in retaining the removable jaw in operative position.

Further means are provided for retaining the jaw 14 in position and include an elongated spring member 18 provided at one end thereof with a block 19 having an opening 20 therein for the reception of a rivet 21 which extends transversely through the shank 10 of the wrench and secures this end of the springmember 18 .to the shank adjacent the worm 13 of the wrench. The block 19 is countersunk in the inner edge of the shank 10 and said edge is also provided with a longitudinally extending groove or channel 22 adapted to receive the spring 18 whereby the same will be prevented from interfering with the free movement of the sliding jaw 12. The free end 23 of the spring member 18 is bowed slightly so as to normally extend outwardly from the shank 10 and the extremity of said free end is adapted to engage a flat seat 24; formed in the adjacent or serrated edge of the removable jaw 14. The seat 2 1 is cut out of the jaw 14 and is the same width as the spring member 18 so that the latter will be prevented from transverse movement relative to said jaw. This spring member 18 is of a slightly greater length than the distance between the rivet 21 and the seat 24, so that when the jaw 14. is being secured in position the bowed end of the spring member may be jammed inwardly toward the shank l0 and thus securely bind the said jaw and prevent the same from accidental displacement.

It will be seen from the foregoing description taken in connection with the accompanying drawing that the adjustment and the detachment of the jaw 14: are greatly facilitated by the construction and arrangement of the spring member, thus enhancing the value of the entire attachment.

I claim 1. In a wrench attachment, the combination with a wrench having a fixed head provided with an opening; of a removable jaw having a shank adapted for engagement with said opening, said jaw being also provided with a seat, and a spring member having one end fixed to the shank of said wrench and its other end bowed outwardly length, said spring member at its free end being bowed and adapted to engage the seat of said removable jaw.

3. In a wrench attachment, the combination with a wrench including a shank and a fixed head; of a removable jaw associated with said head, and a spring member secured to said shank and being of a length greater than the distance between its point of attachment with said shank and said jaw whereby the free end of said spring member may be jammed into engagement with the Copies of this patent may be obtained for 4. In a wrench attachment, the combination with a wrench including a shank and a fixed head, of a removable jaw associated with said head, and a spring member having one end secured to said shank and extending longitudinally thereof, the other end of said member. being adapted to engage said remov able jaw.

5. A wrench including a fixed head, a sliding aw, a shank provided with a longitudinal groove over which the sliding j aw travels and having at the end of said groove opposite the fixed head of the wrench a recess,

a spring having an enlarged head at one end seated in the recess of the shank with the spring projecting within the longitudinal groove of the shank and through the sliding jaw and spring outwardly at its free end, and a removable jaw,detachably held to the head of the wrench by said end of the spring.

DANIEL JONES PUGH.

Witnesses:

THOMAS BANNAN WEAVER, WILLIAM KALBAQH.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

